There are
1,229 mi
from Miramar, FL to St Charles, MO
That's the driving distance. It would take 22 hours 35 mins to go from Miramar, Florida to St Charles, Missouri.
The flight distance (direct flight from Miramar, FL to St Charles, MO) is 1,065.90 mi.
1,229 mi = 1.61 kms